Class B First-hand BFRO #36623

Several possible vocalizations heard south of Jacob Lake near the North Rim of the Grand Canyon

10 October 2012 2:30 AM JACOB LAKE, Coconino County, Arizona 2 witnesses

Account

Two companions on a motorcycle camping trip in the North Rim area were sleeping in separate tents when loud screams woke them about 2:30 a.m. The screams continued for several minutes from an estimated 40 yards away and were followed by the snap of a limb. Neither witness saw the source, and the reporting witness stated the sounds were unlike anything heard in a lifetime of hunting and fishing.

Summary drafted by AI from the source report and checked by code before I publish it. The witness's own words remain with the publisher — read the original report .

What was reported

Every kind of observation in the account. Select one to find other encounters with it.

Sounds

Facts & provenance

Each value names where it came from.

Date
10 October 2012
Stated BFRO report #36623 · BFRO report, labelled fields: Year, Month, Date
Time of day
2:30 AM
Stated BFRO report #36623 · BFRO report, “Time And Conditions” section
Place
JACOB LAKE, Coconino County, Arizona
Stated BFRO report #36623 · BFRO report, labelled fields: State, County, Nearest Town, Location Details, Nearest Road
Map point
36.65, -112.24 (± 8 km)
Stated BFRO map layer · BFRO published map layer · read with 85% confidence
BFRO map layer point for report 36623 with published boundary
Account type
First-hand
Derived BFRO report #36623 · BFRO report, “Observed” section
Witnesses
2
Derived BFRO report #36623 · BFRO report, “Other Witnesses” section
Witness was
motorcycle camping, sleeping in tents overnight
Stated BFRO report #36623 · BFRO report, “Observed” section
Source classification
Class B
Stated BFRO report #36623 · BFRO classification label

Evidence & investigation

What the source says was found or done. Claimed evidence is listed as claimed; the Anomadex has not examined it.

Investigated by
TF Zamiski (BFRO)
Follow-up

The witness produced a couple of wood knocks at camp earlier on the evening before the nighttime screams.

BFRO report, “Follow-Up” section
Follow-up

An investigator spoke with the witness by phone to collect additional details about the nighttime screams.

BFRO report, “Follow-Up” section
Follow-up

After returning home the witness searched online recordings and found one similar to what was heard.

BFRO report, “Follow-Up” section

Source timeline

Every record this entry is built from, earliest known first. Records are versioned and never edited in place.

  1. Published 2012-10-08 Retrieved 2026-09-25 Version 1 Hash d7c6bf9167b3
    BFRO - Bigfoot Field Researchers Organization
  2. BFRO map layer Reference
    Retrieved 2026-09-24 Version 1 Hash cfb8a3d423b7
    BFRO - Bigfoot Field Researchers Organization

The report refers to

  • “ENCOUNTERS IN THE SAME AREA”
    Not in the Anomadex yet